iOS/Mac: Transloader is a Mac and iPhone app that allows you to send a download URL you find on your iPhone directly to you Mac so you can queue up files for download on the go.

Transloader is two apps, one on your Mac, and the other on iPhone. Simply paste the URL of a file you want to download on your Mac into the iPhone app, and it sends the info over and starts downloading right away. You need to have iCloud file sharing enabled on your iPhone (Settings > iCloud > Documents and Data) for it to work. Once you're set up, paste as many URLs into the iPhone app as you like, and the next time you open Transloader on your Mac they'll start downloading automatically. Transloader isn't the only option out there, but it works well as a simple solution that uses iCloud instead of another service.